/* roulang page: index */
:root {
      --primary: #0F141C;
      --secondary: #1B4332;
      --neon: #00FF87;
      --accent: #10B981;
      --bg-light: #F8FAFC;
      --border-color: rgba(226, 232, 240, 0.8);
      --font-main: "PingFang SC", "MiSans", "Microsoft YaHei", sans-serif;
    }
    body {
      font-family: var(--font-main);
      color: #0A0F1D;
      background-color: var(--bg-light);
      overflow-x: hidden;
      margin: 0;
    }
    .neon-glow {
      box-shadow: 0 0 25px rgba(0, 255, 135, 0.25);
    }
    .card-hover {
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 30px -10px rgba(15, 20, 28, 0.08);
      border-color: var(--accent);
    }
    .dark-card-hover {
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }
    .dark-card-hover:hover {
      transform: translateY(-4px);
      box-shadow: 0 20px 35px -10px rgba(0, 255, 135, 0.12);
      border-color: var(--neon);
    }